Home / 27,676.11-38,169.30-18,234.75

Finding the Fourth Proportional to 27,676.11, 38,169.30 and 18,234.75

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Solution

The fourth proportional to 27,676.11, 38,169.30 and 18,234.75 is: 25,148.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,676.11 : 38,169.30 = 18,234.75 : x
  2. Step 2: Convert to fraction form
    27,676.11/38,169.30 = 18,234.75/x
  3. Step 3: Cross multiply
    27,676.11x = 38,169.30 × 18,234.75
  4. Step 4: Simplify right side
    27,676.11x = 696,007,643.18
  5. Step 5: Solve for x
    x = 696,007,643.18/27,676.11
  6. Step 6: Final answer
    x = 25,148.32

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.